1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nika2105 [10]
3 years ago
11

Suppose that 0.88g of water condenses on a 75.0-g block of iron that is initially at 22 degrees Celsius. If the heat released du

ring condensation goes only to warming the block, what is the final temperature (in degrees Celsius) of the iron block? Assume a constant enthalpy of vaporization for water of 44.0 kJ/mol.
Chemistry
1 answer:
vitfil [10]3 years ago
8 0

Answer:

The final temperature (in degrees Celsius) of the iron block is 85.82 °C

Explanation:

<u>Determine the heat emitted by the condensing water.</u>

qw = 0.88 g H2O  \frac{1 mol H2O}{18.0152 g H2O}  \frac{- 44 kJ}{1 mol H2O}

qw = -2.1492 kJ

<u>Determine the heat absorbed by the iron block</u>

qw = - qw = - (-2.1492 kJ) = 2.1492 kJ

<u>Look up the specific heat for iron. Use the specific heat equation to solve for the final temperature of the iron block.</u>

q = mcΔT

ΔT = q / mc

Temp f = (q / mc) + Temp i

Temp f = 2.1492 x 10^3 J / 75 g (0.449 J/g.°C) + 22 °C

Temp f = 85.82 °C

You might be interested in
Please help :( I don’t understand this question
Karolina [17]

Answer:

A...................................

8 0
3 years ago
Read 2 more answers
Name careers that find cures for diseases
Y_Kistochka [10]
Any type of medical scientist works.
6 0
3 years ago
Read 2 more answers
Myra wants to measure the pH of a sample of drinking water as accurately as possible. What method should she use?
zhenek [66]
Use a strip of paper covered in PH indicating dye.
7 0
3 years ago
What would you need to do to calculate the molality of 10 g of NaCl in 2 kg of
jasenka [17]

Answer:

O B. Convert the 10 g of NaCl to moles of NaCl.

Explanation:

The formula for finding the molality is m=moles of solute/kg of solvent. The solute for this question is NaCl and the solvent is water.

(10g NaCl)(1 mol NaCl/58.44g NaCl)=0.1711 mol NaCl

58.44 is the molar mass of NaCl

m=0.1711 mol NaCl/2 kg H2O

m=0.085557837

7 0
3 years ago
Which of the following reactions are possible if sodium is more reactive than aluminum, 3 iron, and lead?
Deffense [45]

Answer:

Reaction I: Sodium + Aluminum chloride →Sodium chloride + Aluminum

Explanation:

Sodium being more reactive means that it will take the place of aluminium in whats called a displacement reaction and form.

Sodium chloride + Aluminum

8 0
3 years ago
Read 2 more answers
Other questions:
  • Indicates the kind, number, arrangement, and bonds but not the unshared pairs of the atoms in a molecule.
    9·1 answer
  • Elements that are arranged in the same column on the periodic table belong to the same family of elements. the atoms of elements
    5·1 answer
  • What is the independent variable for a dry ice experiment
    8·1 answer
  • a rough guide to fluid requirements based on body weight is 100mL/kg for the first 10kg of body weight, 50mL/kg for the next 10k
    9·1 answer
  • Suggest 2 reasons why copper should not be disposed in landfill sites
    10·2 answers
  • How to find out if two compounds will react or not in chemistry?
    8·1 answer
  • Cobalt chloride Select one: a. Does not exist as a hydrate b. Forms a single hydrate which may be pink or blue c. Forms differen
    9·1 answer
  • What is the density of a block with a mass of 36 g and a volume of 9 cm3?
    9·1 answer
  • When large masses of magma solidify very slowly far below earths surface, they form igneous rocks that have a ___?
    11·1 answer
  • Which of the following is a form of stored energy?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!